CN215947578U

CN215947578U - Pneumatic rubber band frame

Info

Publication number: CN215947578U
Application number: CN202121976184.7U
Authority: CN
Inventors: 李娟�; 刘瑞宁; 柳志超; 路剑; 王英娜; 张辉娟; 陈素超
Original assignee: Hebei Benfa Garment Co ltd
Current assignee: Hebei Benfa Garment Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-04
Anticipated expiration: 2031-08-20

Abstract

The utility model provides a pneumatic rubber band frame, which belongs to the technical field of sewing machinery and comprises: base, fore-stock, after-poppet, two rollers, cylinder and bolt. A guide rail is fixedly arranged on the base, and a sliding block is arranged on the guide rail; the front bracket is fixedly arranged on the base; the rear support is fixedly arranged on the sliding block; the two rollers are respectively arranged on the front bracket and the rear bracket; the cylinder is fixedly arranged on the base and used for driving the sliding block to reciprocate on the guide rail; a connecting rod is fixedly arranged on a telescopic rod of the air cylinder, and a through hole in sliding fit with the connecting rod is formed in the sliding block; the connecting rod is provided with a plurality of jacks along the length direction; the bolt is installed on the slider, and bolt and jack grafting cooperation, connecting rod and slider fixed connection with the help of the bolt. The pneumatic rubber band frame provided by the utility model can adapt to rubber band frames with different specifications, does not need to disassemble, assemble and replace the air cylinder, is convenient to operate, and greatly improves the working efficiency.

Description

Pneumatic rubber band frame

Technical Field

The utility model belongs to the technical field of sewing machinery, and particularly relates to a pneumatic rubber band frame.

Background

Currently, sewing machines are machines that use one or more sewing threads to form one or more stitches in a fabric, thereby interweaving or stitching together one or more layers of the fabric. The elastic band is used as a clothing accessory, and is particularly suitable for clothing products such as trousers, infant clothing and the like. The traditional method for sewing the elastic band is to manually pull the elastic band by one hand and operate the elastic band by the other hand, so that on one hand, sewing is inconvenient, and on the other hand, the elastic band is pulled by the hand for a long time, and the labor intensity of workers is high. Therefore, auxiliary tools such as a rubber band frame are used in the existing market to stretch the rubber band instead of manual stretching. The existing rubber band support comprises a base, a front support and a rear support, the front support is fixedly connected with the base, the rear support is connected with the base in a sliding mode, an air cylinder is installed between the base and the rear support, and rolling shafts are installed on the front support and the rear support respectively. The two ends of the elastic band are sleeved on the rolling shafts, and then the rear support is driven by the air cylinder to move towards the direction far away from the front support, so that the elastic band is spread. However, in the actual production process, the specifications of the rubber band are more, the cylinders with different strokes need to be replaced to adapt to the rubber band with different lengths, so that the cylinders need to be disassembled and assembled through auxiliary tools in each adjustment, the operation is very inconvenient, and the working efficiency is seriously affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pneumatic rubber band frame, and aims to solve the problems that the existing rubber band frame can only be used for replacing air cylinders with different specifications in order to adapt to rubber band belts with different specifications, so that the operation is inconvenient, and the working efficiency is seriously influenced.

In order to achieve the purpose, the utility model adopts the technical scheme that: there is provided a pneumatic rubber band holder comprising:

the guide rail is fixedly arranged on the base, and a sliding block is arranged on the guide rail;

the front bracket is fixedly arranged on the base;

the rear bracket is fixedly arranged on the sliding block;

the two rolling shafts are respectively arranged on the front bracket and the rear bracket;

the cylinder is fixedly arranged on the base and used for driving the sliding block to reciprocate on the guide rail; a connecting rod is fixedly installed on a telescopic rod of the air cylinder, and a through hole in sliding fit with the connecting rod is formed in the sliding block; the connecting rod is provided with a plurality of jacks along the length direction; and

the bolt is installed on the sliding block, the bolt is in inserting fit with the jack, and the connecting rod is fixedly connected with the sliding block through the bolt.

In a possible implementation manner, the number of the cylinders is two, and the cylinders are symmetrically arranged on two sides of the sliding block.

In a possible implementation manner, the connecting rod is of a hollow structure, and the connecting rod is sleeved outside the telescopic rod.

In a possible implementation mode, be equipped with the ball groove on the inner wall of connecting rod, ball and compression spring are installed to the ball inslot, compression spring is located the inboard of ball just supports and leans on the ball, be equipped with on the outer wall of telescopic link with ball joint complex draw-in groove.

In a possible implementation manner, a guide sliding groove is formed in the outer wall of the telescopic rod, and the guide sliding groove is arranged along the axial direction of the telescopic rod and is communicated with the clamping groove.

In a possible implementation, the bolt is connected with the sliding block through threads.

In a possible implementation manner, the top surface of the sliding block is rotatably provided with a rotating pressing block, and the outer wall of the bolt is provided with a limiting groove which is matched with the rotating pressing block for installation.

In one possible implementation, the limiting groove is an annular groove.

In a possible implementation manner, the bottom surface of the rotating pressing block is provided with anti-skid protrusions.

In a possible implementation manner, a flange is arranged at the top end of the plug pin, and a plurality of holding grooves are formed in the outer wall of the flange along the circumferential direction of the flange.

Compared with the prior art, the scheme shown in the embodiment of the application is that the connecting rod is fixedly mounted on the telescopic rod of the air cylinder, the connecting rod is in sliding fit with the sliding block, the connecting rod is provided with the plurality of jacks, the jacks are arranged along the length direction of the connecting rod, meanwhile, the sliding block is provided with the plug pin which is in plug-in fit with the jacks, and the connecting rod is fixedly connected with the sliding block through the plug pin. When the interval between two rollers needs to be adjusted to satisfy the rib belt of corresponding length, only need to move the slider along the length direction of guide rail, make and take place relative displacement between slider and the connecting rod, after the slider moved suitable position, insert the bolt in the jack of corresponding position again to it is fixed to slide block and connecting rod locking. The pneumatic rubber band frame can adapt to rubber band frames of different specifications, does not need to be disassembled and assembled to replace a cylinder, is convenient to operate, and greatly improves the working efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of a pneumatic rubber band frame according to an embodiment of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of a connection structure of a slider and a connecting rod according to an embodiment of the present invention;

fig. 4 is a schematic view of a connection structure of a connection rod and a telescopic rod according to a first embodiment of the present invention;

fig. 5 is a schematic view of a connection structure of the plug and the slider according to the second embodiment of the present invention;

fig. 6 is a schematic sectional view taken along line B-B in fig. 5.

In the figure: 1. a base; 101. a guide rail; 102. a slider; 103. rotating the pressing block; 104. anti-skid projections; 2. a front bracket; 3. a rear bracket; 4. a roller; 5. a cylinder; 501. a telescopic rod; 502. a connecting rod; 503. a jack; 504. a ball groove; 505. a ball bearing; 506. a compression spring; 507. a card slot; 508. a guide chute; 6. a bolt; 601. a limiting groove; 602. a flange plate; 603. a holding groove.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 and 2, a pneumatic rubber band frame according to the present invention will now be described. The pneumatic rubber band frame comprises: the device comprises a base 1, a front support 2, a rear support 3, two rollers 4, a cylinder 5 and a bolt 6. A guide rail 101 is fixedly arranged on the base 1, and a sliding block 102 is arranged on the guide rail 101; the front bracket 2 is fixedly arranged on the base 1; the rear bracket 3 is fixedly arranged on the sliding block 102; the two rollers 4 are respectively arranged on the front bracket 2 and the rear bracket 3; the cylinder 5 is fixedly arranged on the base 1 and used for driving the sliding block 102 to reciprocate on the guide rail 101; a connecting rod 502 is fixedly arranged on a telescopic rod 501 of the air cylinder 5, and a through hole in sliding fit with the connecting rod 502 is formed in the sliding block 102; the connecting rod 502 is provided with a plurality of insertion holes 503 along the length direction thereof; the bolt 6 is installed on the sliding block 102, the bolt 6 is in inserted fit with the insertion hole 503, and the connecting rod 502 is fixedly connected with the sliding block 102 by the bolt 6.

Compared with the prior art, the pneumatic rubber band frame provided by the embodiment has the advantages that the connecting rod 502 is fixedly mounted on the telescopic rod 501 of the air cylinder 5, the connecting rod 502 is in sliding fit with the sliding block 102, the connecting rod 502 is provided with the plurality of insertion holes 503, the insertion holes 503 are arranged along the length direction of the connecting rod 502, meanwhile, the sliding block 102 is provided with the plug pin 6 in insertion fit with the insertion holes 503, and the connecting rod 502 is fixedly connected with the sliding block 102 through the plug pin 6. When the distance between the two rollers 4 needs to be adjusted to meet the requirement of a rib belt with a corresponding length, the sliding block 102 only needs to be moved along the length direction of the guide rail 101, so that the sliding block 102 and the connecting rod 502 are relatively displaced, and after the sliding block 102 is moved to a proper position, the plug pin 6 is inserted into the insertion hole 503 at the corresponding position, so that the sliding block 102 and the connecting rod 502 are locked and fixed. The pneumatic rubber band frame can adapt to rubber band frames of different specifications, does not need to disassemble, assemble and replace the air cylinder 5, is convenient to operate, and greatly improves the working efficiency.

In some embodiments, referring to fig. 1, the number of the cylinders 5 is two, and the cylinders are symmetrically arranged on both sides of the slider 102. In this embodiment, the two cylinders 5 simultaneously apply acting force to the slider 102 from the two sides of the slider 102, so as to ensure that the slider 102 is stressed more evenly, and effectively avoid eccentric wear of the slider 102 due to unilateral stress. Due to the arrangement of the two air cylinders 5, when the power of one air cylinder 5 fails, the other air cylinder 5 can still drive the sliding block 102 to move on the guide rail 101.

In some embodiments, referring to fig. 2 and 3, the connecting rod 502 is a hollow structure, and the connecting rod 502 is sleeved outside the telescopic rod 501. In this embodiment, the connecting rod 502 is a circular steel tube. The connecting rod 502 adopts a hollow structure, so that the self weight of the connecting rod 502 is greatly reduced. One end of the connecting rod 502 is sleeved on the telescopic rod 501 and can be fixedly connected through welding or other connecting pieces.

In some embodiments, referring to fig. 4, a ball groove 504 is formed on an inner wall of the connecting rod 502, a ball 505 and a compression spring 506 are installed in the ball groove 504, the compression spring 506 is located inside the ball 505 and abuts against the ball 505, and a clamping groove 507 engaged with the ball 505 is formed on an outer wall of the telescopic rod 501. In this embodiment, the number of the ball grooves 504 is two, and the ball grooves are symmetrically arranged with respect to the axis of the connecting rod 502. The compression spring 506 exerts an acting force on the ball 505 towards the center of the connecting rod 502, so that the ball 505 can be automatically in clamping fit with the clamping groove 507, and the connecting rod 502 and the telescopic rod 501 are fixedly connected.

In some embodiments, referring to fig. 4, a guiding sliding groove 508 is disposed on an outer wall of the telescopic rod 501, and the guiding sliding groove 508 is disposed along an axial direction of the telescopic rod 501 and is communicated with the locking groove 507. In this embodiment, the inner wall of the guide chute 508 is an arc surface, the guide chute 508 is a through groove, and the depth dimension of the guide chute 508 is smaller than the depth dimension of the clamping groove 507. The balls 505 pass through the guide chutes 508 and then enter the locking grooves 507. The guide sliding groove 508 guides the ball 505, so that the ball 505 can be quickly and accurately installed in place with the clamping groove 507.

In some embodiments, referring to fig. 3, the pin 6 is threadedly coupled to the slider 102. In this embodiment, an external thread is provided on the outer peripheral surface of the plug pin 6, and a threaded hole fitted with the plug pin 6 is correspondingly provided on the top surface of the slider 102. The bolt 6 and the slider 102 are in threaded connection, so that the connection strength between the bolt 6 and the slider 102 can be improved, and the bolt 6 can be taken out only by rotating the bolt 6, so that the bolt 6 is prevented from being disengaged from the jack 503 due to the vibration of the slider 102.

In some embodiments, referring to fig. 5, the top surface of the sliding block 102 is rotatably installed with the rotating pressing block 103, and the outer wall of the plug 6 is provided with a limiting groove 601 installed in cooperation with the rotating pressing block 103. In this embodiment, the rotary presser 103 has a disk shape, and the rotation axis of the rotary presser 103 is eccentrically provided. The rotary pressing block 103 is screwed in or out of the limiting groove 601, so that the bolt 6 is limited or released, the structure is simple, and the operation is convenient.

In some embodiments, referring to fig. 5 and 6, the limiting groove 601 is an annular groove. In this embodiment, the number of the rotating pressing blocks 103 is plural, and the rotating pressing blocks are uniformly arranged along the circumferential direction of the plug 6. A plurality of rotatory briquetting 103 is spacing to bolt 6 simultaneously along the circumference of bolt 6, has promoted the joint strength between bolt 6 and the slider 102. Because the limiting groove 601 is an annular groove, the rotating pressing block 103 can be screwed into the limiting groove 601 as long as the limiting groove 601 is flush with the rotating pressing block 103 in the horizontal direction, and the assembling difficulty is greatly reduced.

In some embodiments, referring to fig. 5, the bottom surface of the rotating pressing block 103 is provided with anti-slip protrusions 104. In this embodiment, the surface of the stud 104 is a circular arc. The anti-skid protrusions 104 and the rotating pressing block 103 are integrally formed, so that the integrally formed structure is higher in strength, and is more firm and durable. The anti-slip protrusions 104 are uniformly arranged on the bottom surface of the rotating pressing block 103 and used for increasing the friction force between the rotating pressing block 103 and the limiting groove 601, so that the rotating pressing block 103 is kept relatively stable in the limiting groove 601.

In some embodiments, referring to fig. 2, the top end of the plug 6 is provided with a flange 602, and the outer wall of the flange 602 is provided with a plurality of holding grooves 603 along the circumference. In this embodiment, the flange 602 and the plug 6 are fixed by welding. The holding grooves 603 are arc-shaped grooves and are uniformly arranged along the circumferential direction of the flange plate 602. The plurality of holding grooves 603 are formed in the outer wall of the flange plate 602, so that an operator can hold the plug 6 conveniently.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A pneumatic rubber band frame, comprising:

the front bracket is fixedly arranged on the base;

the rear bracket is fixedly arranged on the sliding block;

2. The pneumatic rubber band frame of claim 1, wherein said number of cylinders is two and said cylinders are symmetrically disposed on both sides of said slider.

3. The pneumatic rubber band frame of claim 1, wherein said connecting rod is a hollow structure, and said connecting rod is sleeved outside said telescopic rod.

4. The pneumatic rubber band frame of claim 3, wherein the inner wall of the connecting rod is provided with a ball groove, the ball groove is internally provided with a ball and a compression spring, the compression spring is positioned at the inner side of the ball and is abutted against the ball, and the outer wall of the telescopic rod is provided with a clamping groove which is matched with the ball in a clamping way.

5. The pneumatic rubber band holder as claimed in claim 4, wherein said extension rod has a guide groove on its outer wall, said guide groove being axially disposed along said extension rod and communicating with said engaging groove.

6. The pneumatic rubber band holder as claimed in claim 1, wherein said bolt is screw-coupled to said slider.

7. The pneumatic rubber band frame as claimed in claim 1, wherein a rotary press block is rotatably mounted on the top surface of the sliding block, and a limit groove is formed on the outer wall of the bolt to be fitted with the rotary press block.

8. The pneumatic rubber band holder of claim 7, wherein said retaining groove is an annular groove.

9. The pneumatic rubber band holder of claim 7, wherein the bottom surface of said rotating pressing block is provided with an anti-slip projection.

10. The pneumatic rubber band holder as claimed in claim 1, wherein said latch has a flange formed at the top end thereof, and said flange has a plurality of holding grooves formed on the outer wall thereof along the circumferential direction thereof.